Snap-coupling.



c. Ejw. REINSUORF.

SNAP cuPLmG.l APPLICATION FILED JUNE Z4. IQIB.

Patented Nov. I918.

TED srA'rEsPA oFFIeE.

CARL EDWARD-WILLIAM REINsDoRF, 0F HUMBQLDT, SASKATCHEWAN, CANADA.,-

SN {kP-COUPLIN G.

Speeicaton of Letters Patent.

Patented Nov. 12, 1918-.

Application tiled I une 24, 1918. Serial No. 241,584.

invented certain new and useful Improvements in SnapCouplings, off whichthe following is a specification.

This invention relates to improvements in snap couplings and its primeobject is to provide a coupling in which the separable parts may besnapped into operative engagement, and disconnected by a Sudden jerk ofone of the parts` A. further object is to provide a device of this typethat is Vsimple in ,const-ru@ tion and efficient in operation. With .theforegoing and other objects in view the invention consists in thecombination and arrangement of parts to be hereinafter fully described,pointed out in the appended claims and illustrated in the accompanyingdrawing which forms a part of this specification and in which- Figure 1is a view of my improved coupling in elevation.

Fig. 2 is a longitudinal sectional view through Fig. 1, uncopled.

Fig. 3 is a top plan'view of the device with the pull cord omitted.

Fig. 4 is a fragmentary view of one of the separable parts of thedevice.

Like reference characters denote corresponding parts throughout theseveral views.

The reference numeral 1 denotes an open ended cylindrical shell formedwith the spaced perfor-ations 2, 3, the pcrforations 2 receiving thetransversely disposed contractile spring 4 which extends through andbeyond the shell 1, the ends of said spring being secured to theangular' jaws 5, 5 having bearing shoulders 5a for engagementwith theshell and which jaws each have one end secured by rivets 6 to the shell1, the jaw Shanks 7 being spaced away from the shell and the teetlf 8 ofsaid jaws being adapted for insertion into the shell perforatiops 3. Thepurpose of the spring 4 is to yieldingly draw the jaws toward each otherand a tie bolt. 9 extending transversely through the shell and engagingboth jaws limits, in a positive manner, the relative movement of saidjawsaway from each other. Each jaw is formed with a handle or extension10 in a suitable perforation in which one end of a `cord `11 is'-secured, said cords 11 being branches of a pull cord 12 by means ofwhich relative movement of the jaws 5, 5 is effected. l A second openended cylindrical shell 13 is formed with one reduced termination 1-l.

wherein the alined perforations 15 are forined, the shell end 14 heiligadapt-ed for insertion in one end of the shell 1 and the perfo? rations15 being adapted to receive the teeth S of the jaws 'rwhereby the shells1, 13 are secured together. One end of the shell 13 may be. threaded forengagement with a pipe or the said shell 13 may be otherwise secured toan object and the cord 12 suitably secured to anotherpbject when it isdesired to couple or secure the two objects together. The device may beused for a variety of purposes such `as a support for hanging lamps orfor lightweight objects generally.- The coupling is instantly assembledby simply inserting the end 14 of shell 13 into shell 1 until the jaws 5engage with the shell end perforations 15. To disengage the shells theoperator may hold the shell 13 and give a sharp jerk upon the cord 12when the teeth otl the jaws will be snapped out of engagement with theshell 13 thus freeing the saine.

IV hat is claimed is 1. In a snap coupling, a shellv formed withperforations, a pair of jaws secured to saidv shell and formed withteeth adapted for insertion in the perforated portions of said shell,means for yieldingly drawing said j aws toward said shell, a iexiblcelement connected to said jaws whereby their toothed ends may be drawnoutwardly from said shell, anda second shell adapted for telescopicengagement with the tirst named shell, said second shell beingperforated to receive the teeth of said jaws.

2. In a snap coupling, a shell formed with perforations, a. pair of jawssecured to said shell and formed with teeth adapted for insertion in theperforated portions of said shell, means for yieldiugly dra wing saidjaws toward said shell, means for positively limit- Iing the outwardmovement of said jaws with 'relation to said shell, a flexible elementon.

nected to said jaws whereby their toothed ends may be drawn outwardlyfrom said shell, and a second shell adapted for telescopic engagementwith the first named shell. said second shell being perforated toreceive the teeth Vof said jaws.

3. In a snap coupling, a. shell formed with 1 two pair of spacedperforations, the members of each pair of perforations being alind witheach other, a pair of jaws secured to said shell and formed with teethadapted for insertion in one pair of shell perforations, a springextending through the other pair of perforations and having its endsengaging said jaws to yieldingly draw them together, means forpositively limiting the outwardmovement of said jaws with relation to'said shell, a flexible element connected to said jaws whereby theirtoothed erds may be drawn outwardly from said shell, 'and a sec- 0ndshell adapted for telescopic`engageme'nt with the first named shell1said second shell being formed with alined perfor-ations to re-.\ ceivethe teeth of said jaws.

4. In a snap coupling, a shell formed with two pair of spacedperforations, the members of each pair of perforations being alned witheach other, a pair ot' jaws secured to said shell and formed with teethadapted for insertion in one pair-of shell penfrations, a springextending through the other pair of perforations and havingits endsengaging said jaws to -yieldingly draw them tofether, 3`-

atie rod extending through said shel and connected to said jaws, aflexible element connected to said jaws whereby their toothed A ends maybe drawn outwardly from said shell, and a second shell adapted for tele-:e

In testimony-that I claimthe foregoing as my own I have heretoA affixedmy signaturen the presence of two subscribing witnesses.:

CARL EDWARD WILLIAM REINSDORF.

lVitnessesi A Rev. L. F. Bonnema, F. H. BENCE.

